Subject :IMO Class : Class 6
Subject :IMO Class : Class 6
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Subject :IMO Class : Class 8
when 
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Subject :IMO Class : Class 5
Ans 1:
Class : Class 8
D
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Subject :IMO Class : Class 5
Ans 1:
Class : Class 6
Correct answer is D.Solution:Age of Yashika = 14Age of Simran = 11Sum of their ages now = 25Number of years it takes for their sum of ages become Sum of their ages now,Yashika = 14 16 = 30 = XXXSimran = 11 16 = 27 = XXVII
Ans 2:
Class : Class 8
D
Ans 3:
Class : Class 6
I used elimination method.
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Subject :IMO Class : Class 4
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Class : Class 7
A
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Subject :IMO Class : Class 4
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Class : Class 4
D
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Subject :IMO Class : Class 4
Ans 1:
Class : Class 4
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Subject :IMO Class : Class 4
Ans 1:
Class : Class 4